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A. DRAINAGE INFORMATION SUMMARY FORM <br /> Project: Diedrich Addition <br /> PFN: <br /> ..Engineer: Omega..Engineering,Inc. <br /> 2707 Wetmore Avenue Total site area: 0.15 acres <br /> Everett, WA 98201 Offsite area: 0.00 acres <br /> Attention: Joseph Smeby, P.E. Disturbed area: 0.13 acres <br /> New Buildings: 0 <br /> Applicant: Nicole Diedrich <br /> 2007 Cedar St <br /> Everett, WA 98201 <br /> Drainage Basin Information Basin A <br /> On-site Developed Area 0.13 acres <br /> Off-site Improved Area 0.00 acres <br /> Types of storage proposed on site bioretention area <br /> Approximate Total storage volume 43.5 cf <br /> Soil Types Type C Soils <br /> _Basin Data <br /> Pre-developed run-off rates: 2-year 0.0108 cfs <br /> 10-year 0.0288 cfs <br /> 50-year 0.0540 cfs <br /> 100-year 0.0680 cfs <br /> Post-developed run-off rates: 2-year 0.0075 cfs <br /> 10-year 0.0200 cfs <br /> 50-year 0.0378 cfs <br /> 100-year 0.0476 cfs <br /> Diedrich Addition 21-0224 <br /> Sept 2021 Page 4 <br />